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Open DMX USB Interface (ENTTEC)


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As a bit of an aside - does the enttec pro do DMX through? - e.g. to allow it to sit between the desk and the dimmers to avoid having to repatch between different types of shows?

 

I'm not quite sure why you would want a USB -> DMX interface sat in your DMX line between your desk and dimmers, can you enlighten us? I'm fairly sure the two connectors are linked together so you could put it in a DMX chain and it will pass a signal through but I can't really see why you would want to. The reason the Pro version has both male and female 5-pin XLR's is that the interface is capable of being a DMX input as well as an output (but can only be one of those at a time). Having both male and female XLRs means you don't have to worry about using a gender changing adapter when changing roles.

 

As for recommended software for the Open version, Chamsys Magic Q is compatible with both the Open and the Pro and bar a very few limitations is fully functioning and very powerful software.

 

If you're considering using this interface regularly for shows then I would strongly recommend spending a little more and getting the Pro version. The fundamental difference between the two is that the Pro version has it's own processor to generate the DMX signal where as the Open version relies on your computers processor to do this so can be effected by the general overheads that your average PC processor has.

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I think what the OP is after is using the DMX Pro to receive a DMX stream and interchange the values of some channels with other channels. It is not capable of doing this, as it can only receive OR transmit.
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This is free and pretty good. In particular Stage Console. I haven't actually used it live but it's a good little theatre control device to have as a backup.

 

EDIT: Just for a bit more info, it also has full 512 channel soft patching, submasters, a cue stack, virtual faders or a command line input method and you can have manual preset too and can set the board to have as many channels as you want. :)

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It's not free, but have you considered LightFactory - it really is the most powerful PC control desk available, designed for theatres. The demo version is fully functional for 12 hours so you can output DMX and test the software, then buy it once you're sure its right for you.

 

If you need any help or support getting started - give me a shout.

 

Kind Regards,

 

 

Peter

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The other reason the USB pro has both male and female connectors is that when you are using it for DMX in (say for a visualiser or media server) you want it be pass through like any other fixture in the chain. I use to think it was excessive just for avoiding a gender changer but it makes more sense now that a few media servers support the product.

 

You could actually use the USB pro as a DMX backup option inline with your DMX. You could have some software that puts the box into input mode and has a switch/button to turn it to output mode if your main desk fails (that's assuming the failure takes out the DMX on the main desk - there is no such thing as a nice failure).

 

Plug: LightFactory can actually do this with the USB pro. If you run the software in tracking backup mode then it will not initialize the USB device until a failure is detected or someone pushes the "takeover" button on the secondary system. Therefore you can sit the second USB pro inline with the DMX chain connected to the secondary/backup PC. Also on power-up the USB pro defaults to DMX input.

 

Martin

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